Would anyone happen to know what the following is: Just below the turbo gauge is an indicator light with three vertical squiggly linesv and one straight horizontal line under it with the number "2" next to them. I shined a light in my cluster the other day and saw this. Not sure what it's for...

Just bought 900 classic 1990 conv. No dash lights but thanks to this forum, took out speaker panel & replaced with 5W light I had around - will find correct 3W (marked as 26M) tomorrow - what a nice car - I can see why they have such a good forum :D